Re: 2.6.1 slower than 2.4, smp/scsi/sw-raid/reiserfs

Philip Martin
2004-02-04T23:44:03Z

Philip Martin <philip@codematters.co.uk> writes:

> Nick Piggin <piggin@cyberone.com.au> writes:
>
>> What are you building, by the way? It slipped my mind.
>
> All the 2.6 figures so far are for a plain 2.6.1. I've just switched
> to 2.6.2 and at first glance it's the same as 2.6.1.

This is the profile for 2.6.2, it is very much like 2.6.1

248.07user 118.81system 3:42.00elapsed 165%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (434major+3770493minor)pagefaults 0swaps

c0109e28 setup_frame 448 1.0667
c010aff4 error_code 449 8.0179
c0108a48 copy_thread 459 0.8376
c012591c __mod_timer 463 1.7276
c010a5b0 syscall_call 484 44.0000
c0119f8c wake_up_forked_process 492 1.3516
c01200b4 put_files_struct 534 2.8404
c0120f80 wait_task_zombie 559 1.4116
c011e598 do_fork 604 1.6237
c0126dd0 flush_signal_handlers 607 8.9265
c010c320 handle_IRQ_event 620 7.0455
c0122430 do_softirq 642 3.1471
c0125b44 del_timer_sync 700 2.5362
c0115e58 flush_tlb_mm 814 6.5645
c011063c old_mmap 895 2.7623
c012a1a8 sys_rt_sigaction 926 3.7951
c012127c sys_wait4 929 1.6017
c010a4d8 ret_from_intr 1275 45.5357
c0128e44 get_signal_to_deliver 1482 1.8162
c0120a68 do_exit 1486 1.8668
c0122388 current_kernel_time 1518 22.3235
c011a158 schedule_tail 1520 9.2683
c011cbb7 .text.lock.sched 2291 4.5366
c0129270 sys_rt_sigprocmask 2462 7.5988
c0129c84 do_sigaction 2843 4.8682
c011d888 copy_files 2869 4.2693
c011d0f8 dup_task_struct 3001 22.0662
c011b520 __wake_up 3053 69.3864
c0129190 sigprocmask 3345 14.9330
c011f9c0 release_task 3593 7.6123
c012041c exit_notify 4023 2.4957
c011aec0 schedule 6625 4.3357
c0115ed4 flush_tlb_page 7025 54.8828
c011db90 copy_process 7663 2.9840
c011d3b8 copy_mm 7704 8.0250
c010a584 system_call 8314 188.9545
c01188a8 pte_alloc_one 15944 249.1250
c0118c78 do_page_fault 44368 37.7279
c0108690 default_idle 1351419 25988.8269
00000000 total 1503962 9.7998

--
Philip Martin